Plaster tie and reenforcement chair



Aug., 24 9 1926. l 1,597,423

@.BEALE PLASTER TIE AND REENFOBCEMENT CHAIR Filed sept. `11, 1923y 20 31a/newton 62211110@ cal@ Patented Aug. 24, 1926.

UNTED STATES PATFNT "QFFICE,

CARROLL BEALN, or wasniNemoN, nrs'rnro'r or GOLUMBLA, AssIGNOR or ONE-HALF To DAVID rEL'roN Moolen, or WASHINGTON, :DISTRICT or COLUMBIA.

@EASTER TIE AND RENFORMENT CHAIR.

Application filed september '11, 1923. serial No. 662,091.

This invention relates to an improved plaster tie and reeniforcement chair for reento'rced concrete ceiling, floors, walls and the like, wherein it is `desirable to apply pl aster directly to the concrete, one object of the invention being the provision of a device of this character which is easily and readily pla-ced in position in conjunction with the form boards, which after `the removal oi 'such boards will be embedded in the concrete with the ties projected a suiiicient distance beyond the surface of the concrete to form a support tor'the plaster to adhere to.

A further object ot' this invention is the provision of a device of this character made from sheet metal and so formed as to be 'easily transported, put into place and manipulated to provide a simple and 'efficient vmeans for supporting the metal reeniiorcing rods above the 'form boards and to provide a projecting tie beyond the Sface Ot the coalesced concrete after the boards are removed, the metal ties beingeasily bent toward the surface to permit of the plaster being applied therearound to adhere thereto, thus making a permanent tying means for the 1@laster to the concrete.

A still further object of this/invention is the provision ot a device of this character which is simple and inexpensive to manufacture, easily handled and put in to place so as to be useful and practical, and which will supply a long telt want, in that with it, it is now possible to attach or applyplaster direct to a concrete surface without tear of it falling off.

In the accompanying drawings Figure 1 is a perspective view of the device as it appears ready for insertion.

Figure 2 is a. cross section through a reenforced concrete floor with the devicel and form boards in place.

Figure 3 is a similar view with the form boards removed and the ceiling plastered.

Figure 4 is a plan view oit a portion of the blank of the device, prior to bending into the form shown in Figure 1.

Figure 5 is a view similar to Figure f1 off a modified torni.

Figures 6 and 7 are plan views of otheiI modilied forms in blank.

Figure 8 is a cross section through the torni as shown in Figure 7, after' the saine,

been bent into shape;

Referring to the drawings,

` licularly to Figures 1, through 4C, the numeral 10 designates the combined chair and plaster tie C the concrete, R the reenforci'ng metal rods, T the ties 'for such rods, and F the form boards. f v

. he device 10 is made from `a single sheet 'ot light bendable metal, and is Ist'annped to provide thefcentral body portion 11, 'the two inwardly converging walls 12, form `a V- shaped wedging support or chair, when the substantially circular `shaped plaster ties 13, and adjacent as shown, and readily insertible in the spaces s between 'the Vtorna boards F. The openings 14 are arranged in pairs so that when 'the device is in theV position vas shown in Figure 2, prior to the concrete being poured, the rods R, may be held 'against accidental displacement by lthe metal wire ties T. After the concrete C has coalesc'ed, and the form boards have beenr'emoved, the plaster ties 13 will project beyond the 'survtace or the concrete, and the-se are then bent to assume vthe position as shown in Figure 8 so that 'theplfas'vter P may be applied in 'the usual manner and readily adhere tothe concrete "and be anchored or tied inplace by the metal ties 13, which are further provided 'each with an opening 15 to form an additional anchoring means for the plaster.

As shown in .Figure l the ties 13 are in opposite pairs, whereas in Figure fthe ties 13 'are alternatechto provide a -single thickness of `tie when inthe plaster.

In Figure 6 the ties 1B are dove-tailed shape.

In Figures 7 and 8, the device is formed with the central body portion 16, the plain wall 17, whose lower edge 18 is designed to rest upon the form board, while the other wall 19,is provided with the circular metal ties or projections 20, which are adapted to be projected between the form boards. This type when packed can be nested, and thus be more compact when in shipment.

That l claim, as new, is

1. A plaster tie having a portion adapted to project from the surface of a form-board upon which concrete is to be placed and having a part adapted to rest upon a formboard, said portion being arranged to be embedded and locked in the concrete, and a plurality of spaced portions designed to eX- tend Jfrom said part into a space between adjacent form-boards to project beyond the concrete a distance substantially eqiiai te the desired thickness of plaster7 said por- A tions being bendable at their juncture with said portion which is adapted to rest upon the surface of a form-board.

2. A plaster tie having a portion adapted to project from the surface of a. form-board upon which concrete is to be placed and having a part adapted to rest upon a formboard, said portion being arranged to be embedded and locked in the concrete, and a plurality of spaced, perforated portions designed to extend into a space between adjacent form-boards and to project beyond the concrete a distance substantially equal to the desired thickness of plaster, said portions being bendable at their juncture with said portion which is adapted to rest upon the surface of a form-board.

3. A plaster tie having a flat portion designed to extend into a space between adjacent form-boards and to project from concrete placed on said form-boards to the desired thickness of the plaster, a. portion which is arranged to project from the formboards and to be embedded and locked in concrete placed on said form-boards, and an intermediate part arranged to engage at least one of said form-boards to limit the degree of the aforesaid extension.

t. A plaster tie having a flat, perforated portion designed to extend into a space between adjacent form-boards and to project from concrete placed onsaid form-boards to the desired thickness of the plaster, and aportion which is arranged to project from the form-boards and to be embedded and locked in concrete placed on said formboards.

5. A plaster tie having a fiat, perforated portion designed to extend into a space between adjacent form-boards and to project from concrete placed on said form-boards to the desired thickness of the plaster, a portion which is arranged to project from the form-boards and to be embedded and locked in concrete placed on said form-boards, and an intermediate part arranged to engage at least one of said form-boards to limit the degree of the aforesaid extension.

6. A plaster tie having a flat, perforated portion designed to extend into a space between adjacent form-boards and to project from concrete placed on said form-boards to the desired thickness of the plaster, a portion which is arranged to project from the form-boards and to be embedded and locked in concrete placed on said rformboards, and means for fastening a tie-rod to theI portion which is arranged tobe embedded in the concrete.

7. A plaster tie havinga flat, perforated part designed to extend in to a space between adjacent form-boards and to project from concrete placed on said form-boards, a part which is arranged to project from the formboards and to be embedded and locked in concrete placed on said form-boards, an intermediate part arranged to engage at least one of said form-boards to limit the degree of the aforesaid extension, and means for fastening a tie-rod to the portion which is arranged to be embedded in the concrete.

8. The herein described method of bonding a covering coat directly onto a concrete structure which consists of assembling formboards, then placing a suitable mechanical tie on the form-boards with a portion thereof extending into a space left between adjacent form-boards without special preparation of the boards, surrounding and locking int-o a bodyk of concrete ak portion of the mechanical tie, by placing concrete on the form-boards, removing the form-boards, and thereafter spreading a covering coat onto the concrete and over the portion of the tie which projects therefrom.

In testimony whereof I aiiix my signature.

` CARROLL REALE; 

